linux-kernel - Re: [PATCH v8 09/11] vfio/pci: Enable peer-to-peer DMA transactions by default

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Message-ID: <aRzUpmUkDy-qN5c1@kbusch-mbp>
Date: Tue, 18 Nov 2025 13:18:46 -0700
From: Keith Busch <kbusch@...nel.org>
To: "Tian, Kevin" <kevin.tian@...el.com>
Cc: Leon Romanovsky <leon@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>,
	Logan Gunthorpe <logang@...tatee.com>, Jens Axboe <axboe@...nel.dk>,
	Robin Murphy <robin.murphy@....com>, Joerg Roedel <joro@...tes.org>,
	Will Deacon <will@...nel.org>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Jason Gunthorpe <jgg@...pe.ca>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jonathan Corbet <corbet@....net>,
	Sumit Semwal <sumit.semwal@...aro.org>,
	Christian König <christian.koenig@....com>,
	Kees Cook <kees@...nel.org>,
	"Gustavo A. R. Silva" <gustavoars@...nel.org>,
	Ankit Agrawal <ankita@...dia.com>,
	Yishai Hadas <yishaih@...dia.com>,
	Shameer Kolothum <skolothumtho@...dia.com>,
	Alex Williamson <alex@...zbot.org>,
	Krishnakant Jaju <kjaju@...dia.com>, Matt Ochs <mochs@...dia.com>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
	"iommu@...ts.linux.dev" <iommu@...ts.linux.dev>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
	"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
	"linaro-mm-sig@...ts.linaro.org" <linaro-mm-sig@...ts.linaro.org>,
	"kvm@...r.kernel.org" <kvm@...r.kernel.org>,
	"linux-hardening@...r.kernel.org" <linux-hardening@...r.kernel.org>,
	Alex Mastro <amastro@...com>, Nicolin Chen <nicolinc@...dia.com>
Subject: Re: [PATCH v8 09/11] vfio/pci: Enable peer-to-peer DMA transactions
 by default

On Tue, Nov 18, 2025 at 07:18:36AM +0000, Tian, Kevin wrote:
> > From: Leon Romanovsky <leon@...nel.org>
> > Sent: Tuesday, November 11, 2025 5:58 PM
> > 
> > From: Leon Romanovsky <leonro@...dia.com>
> 
> not required with only your own s-o-b

That's automatically appended when the sender and signer don't match.
It's not uncommon for developers to send from a kernel.org email but
sign off with a corporate account, or the other way around.